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Reinstall to use Altivec?
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Dedicated MacNNer
Join Date: Jul 2002
Location: Germany
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Offline
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Hi!
I am about to replace the G3-card in my Umax S900 with a G4, and I would like to know if I have to reinstall the systems (10.2.3 and 9.1) to make full use of the G4 (Altivec)? And if yes, in the case of OS X, can I just install on top of the old one, or do I have to install a completely fresh system? Thanks for your help!
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Forum Regular
Join Date: Oct 2001
Location: Sweden
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You shouldn't need to reinstall anything, although it's probably best to take a backup of your system before changing the processor. Better safe than sorry...
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Mac Enthusiast
Join Date: Aug 2001
Location: planet express
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hmm i donīt think that you need to install a fresh system... i mean the system is precompiled anyway, and it should definitely figure out if thereīs altivec present or not.
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"And Zapp Brannigan, your score qualifies you as assistant delivery boy, second class."
"Hmm. I guess I'll have to sleep my way to the top. Kif, wake me when I'm there."
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Mac Elite
Join Date: May 2002
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No reinstallation is necessary.
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[vash:~] banana% killall killall
Terminated
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Professional Poster
Join Date: Sep 2002
Location: New York, NY
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OS X no. OS 9 yes.
OS 9 does not install the vector library extensions unless it is installed on a G4 computer. However, since you are not on an Apple G4, the installer may still not install the G4 extensions since it is probably looking for the Gestalt ID of an Apple G4 computer.
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Vandelay Industries
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Dedicated MacNNer
Join Date: Jul 2002
Location: Germany
Status:
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Originally posted by Art Vandelay:
OS X no. OS 9 yes.
That's what I would have expected, but a friend of mine upgraded his G3 b/w with a G4 and told me that he didn't notice much of a speed increase in OS X until he did a fresh install. OK, a fresh install may always be a bit faster, but I don't think that's what he meant.
OS 9 does not install the vector library extensions unless it is installed on a G4 computer. However, since you are not on an Apple G4, the installer may still not install the G4 extensions since it is probably looking for the Gestalt ID of an Apple G4 computer.
Can these be installed by hand? I read on xlr8yourmac that there used to be separate Altivec extensions in OS 9.0.4, but they are not present anymore in 9.1.
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